I've been on the lookout for a vintage scope to put on one of my early 60's L461, and found a WeaverV7 2.5x7 Duplex with Micro-Trac. Other than a few old rimfires with scopes from the 50's and one 6x I bought new in the 60's, I have little experience with weavers. What is Micro-Trac and what can you tell me about the quality of this old 2.5x7. I'm just looking to rig up my 461 like my Dad would. He spent the money for Sakos, but not so much for scopes. Thanks and don't hold back.